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LB Health Check

You can create an LB Health Check through the Samsung Cloud Platform Console and use it for LB Server Groups.

Creating LB Health Check

Note
You can create up to 500 LB Health Checks per Account.

Follow these steps to create an LB Health Check:

  1. Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
  3. On the LB Health Check List page, click the Create LB Health Check button. You will be navigated to the Create LB Health Check page.
  4. On the Create LB Health Check page, enter the information required for service creation and select detailed options.
    • In the Service Information area, enter or select the required information.
      Item
      Required
      Detailed Description
      LB Health Check NameRequiredLB Health Check resource name
      • Enter 3 to 63 characters using uppercase/lowercase English letters, numbers, and special characters(-_)
      • LB Health Check name cannot be duplicated within an Account
      VPC NameRequiredSelect VPC to create LB Health Check
      • Select VPC where the LB Server Group to use the LB Health Check is created
      Service Subnet NameRequiredSelect VPC Subnet to create LB Health Check
      • Select Subnet where the LB Server Group to use the LB Health Check is created
      Health Check Method > ProtocolRequiredHealth check protocol
      • Select from TCP, HTTP to use for member health check
      Health Check Method > Health Check PortRequiredHealth check port
      • Enter a value between 1 and 65,534 to use for member health check
      Health Check Method > IntervalRequiredHealth check interval
      • Default value 5 seconds, can enter between 1 and 180 seconds
      Health Check Method > TimeoutRequiredHealth check response wait time
      • Default value 5 seconds, can enter between 1 and 180 seconds
      • Cannot set to a value greater than the interval
      Health Check Method > Healthy ThresholdRequiredNumber of times to determine health check status
      • Default value 3 times, can enter between 1 and 10
      Health Check Method > HTTP MethodRequiredSet HTTP request method (when using HTTP protocol)
      • Select from GET, POST
      Health Check Method > URL PathRequiredEnter health check URL path (when using HTTP protocol)
      • Enter within 50 characters using English letters, numbers, and special characters(/.-_?&=)
      Health Check Method > Response CodeRequiredEnter HTTP response code to receive from server (when using HTTP protocol)
      • Enter response codes in the 200 ~ 500 range
      Health Check Method > Request StringRequiredEnter health check request string (when using HTTP protocol POST method)
      • Enter content to include in Request Body within 255 bytes using English letters, numbers, and special characters(/.-_?&=)
      Table. LB Health Check service information input items
    • In the Additional Information area, enter or select the required information.
      Item
      Required
      Detailed Description
      DescriptionOptionalEnter resource description
      TagOptionalAdd tag
      • Can add up to 50 tags per resource
      Table. LB Server Group additional information input items
  5. In the Summary panel, review the created service information and estimated charges, then click the Create button.
    • When creation is complete, verify the created resource on the LB Health Check List page.
Notice

For member health check in Load Balancer, add the following rules to the Security Group of the server added as a member.

  • (Direction) Inbound rule, (Target Address) Load Balancer’s health check IP, (Protocol) Health check protocol, (Allowed Port) Health check port
  • We recommend setting the health check port to be the same as the member port.
  • If the health check port and member port are different, health check is performed based on the member port.
Notice

Set the LB Health Check to a value that can respond from members to be added to the LB Server Group.

  • Since Load Balancer determines member status based on health check response, the LB Health Check result may differ from the actual service status.

Viewing LB Health Check Detailed Information

You can view and modify resource lists and detailed information from the LB Health Check menu. The LB Health Check Detail page consists of Detailed Information, Connected Resources, Tags, and Task History tabs.

Follow these steps to view detailed information of the LB Health Check:

  1. Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.

  2. On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.

    • You can modify column display by clicking the Settings button in the upper right of the table.
      Item
      Display
      Detailed Description
      LB Health Check NameDefaultLB Health Check resource name
      Service Subnet IDDefaultVPC Subnet name where the LB Health Check is created
      LB Server Group CountDefaultNumber of LB Server Groups using the LB Health Check
      TypeDefaultLB Health Check type
      ProtocolDefaultLB Health Check protocol
      Creation DateDefaultLB Health Check creation date
      StatusDefaultLB Health Check resource status
      Table. LB Health Check list items
  3. On the LB Health Check List page, click the resource for which you want to view detailed information. You will be navigated to the LB Health Check Detail page.

    • At the top of the LB Health Check Detail page, status information and description of additional features are displayed.
      ItemDetailed Description
      StatusLB Health Check resource status
      • Active: Service is normally activated
      • Deleting: Processing service termination request
      • Creating: Processing service creation request
      • Error: Cannot check current status due to internal error
        • If this status persists, contact Support Center
      • Editing: Processing service modification request
      Delete LB Health CheckDelete LB Health Check resource
      Table. LB Health Check status information and additional feature items

Detailed Information

On the Detailed Information tab, you can view detailed information of the resource from the LB Health Check List and modify information if necessary.

ItemDetailed Description
ServiceService name
Resource TypeResource type
SRNUnique resource ID in Samsung Cloud Platform
Resource NameResource name
Resource IDUnique resource ID in the service
CreatorUser who requested service creation
Creation DateService creation date
ModifierUser who requested service modification
Modification DateService modification date
LB Health Check NameLB Health Check name
TypeLB Health Check type
VPC NameVPC to use the LB Health Check
  • Clicking the resource name navigates to the detail page
Service Subnet NameVPC Subnet to use the LB Health Check
  • Clicking the resource name navigates to the detail page
Health Check MethodLB Health Check method setting information
  • Can modify by clicking the Edit icon
DescriptionAdditional information about the LB Health Check
  • Can modify by clicking the Edit icon
Table. LB Health Check detailed information tab items

Connected Resources

On the Connected Resources tab, you can view detailed information of the LB Server Group connected to the LB Health Check.

ItemDetailed Description
LB Server Group NameLB Server Group resource name
  • Clicking the resource name navigates to the LB Server Group detail page
ProtocolLB Health Check protocol
Load Balancer NameLoad Balancer resource name connected to LB Server Group
Member CountNumber of members added to LB Server Group
Creation DateLB Server Group creation date
StatusLB Server Group resource status
  • Active: Service is normally activated
  • Deleting: Processing service termination request
  • Creating: Processing service creation request
  • Error: Cannot check current status due to internal error
    • If this status persists, contact Support Center
  • Editing: Processing service modification request
Table. LB Health Check connected resources list items

Tags

You can view, add, modify, or delete tag information for the resource selected from the LB Health Check List page.

ItemDetailed Description
Tag ListTag list
  • Can view Key, Value information of the tag
  • Can add up to 50 tags per resource
  • When entering a tag, search and select from the list of previously created Keys and Values
Table. LB Health Check tags tab items

Task History

On the Task History tab, you can view the task history of the selected resource.

ItemDetailed Description
Task DetailsTask execution content
Task DateTask execution date
Resource TypeResource type
Resource NameLB Health Check name
Task ResultTask execution result (Success/Failure)
Task User InformationUser information who performed the task
Table. LB Health Check task history list items

Modifying LB Health Check Method

You can modify the health check method on the LB Health Check Detail page.

Follow these steps to modify the LB Health Check method:

  1. Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
  3. On the LB Health Check List page, click the resource for which you want to modify detailed information. You will be navigated to the LB Health Check Detail page.
  4. On the LB Health Check Detail page, click the Edit icon on Health Check Method. You will be navigated to the Modify Health Check Method popup window.
  5. In the Modify Health Check Method popup window, modify the required information, then click the OK button.

Terminating LB Health Check

You can terminate an LB Health Check service that is not in use.

Caution
  • You cannot delete LB Health Check resources of Default type.
  • You cannot delete LB Health Check resources in use by LB Server Groups.

Follow these steps to terminate the LB Health Check:

  1. Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
  3. On the LB Health Check List, click the resource you want to terminate. You will be navigated to the LB Health Check Detail page.
  4. On the LB Health Check Detail page, click the Delete LB Health Check button.
  5. When termination is complete, verify resource termination on the LB Health Check List.
LB Server Group
Release Note